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DougF
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"Freezing Spray" Penetrants
Some of you may have seen freezing sprays on your local auto parts shelf and passed them by because it sounded gimmicky.
I sell such a product that I cannot sell to the public, but will take a moment to describe it.
I do not know any of the retail names and cannot or will not recommend specific products.
The product that I sell is under fairly high pressure and dispenses a lot of product when expelled. When I demonstrate it, I generally find a metal trash can that will contain the mess and reduce the amount of product I need to use because of the thin wall. I will shoot the surface with my laser thermometer for a before temp reading. After a several second spray, which varies depending on the thickness of the metal, a second temperature reading is generally about -20 to -35 degrees. Quite often, there is over a 100 degree difference between the two readings.
At these cold temps, you will naturally have contraction of the metals. With contraction, the rust will break up enough in the threads to allow the lubricant to penetrate as it thaws.
The product is flammable and must be used in a well ventilated room, so use around ignition or hot wires is not recommended. The product can also cause frostbite, so caution must taken at all times.
These products work in most applications where a penetrant is used. I generally recommend them on smaller fasteners because of the amount of product needed for it to be effective can be prohibitive as the sizes increase. They are very effective on brake lines and bleeder screws. With bleeders, spraying into the hole produces excellent results.
Feed back from my customers has always been very good. I highly recommend this type of product where normal penetrants aren't effective and the use of heat is not suggested.
Pennsylvania and Ohio, the states where I sell, are two of the strictest states in the country concerning the chemicals they permit to be sold within their borders. Both permit the sale of this product.
Some of you may have seen freezing sprays on your local auto parts shelf and passed them by because it sounded gimmicky.
I sell such a product that I cannot sell to the public, but will take a moment to describe it.
I do not know any of the retail names and cannot or will not recommend specific products.
The product that I sell is under fairly high pressure and dispenses a lot of product when expelled. When I demonstrate it, I generally find a metal trash can that will contain the mess and reduce the amount of product I need to use because of the thin wall. I will shoot the surface with my laser thermometer for a before temp reading. After a several second spray, which varies depending on the thickness of the metal, a second temperature reading is generally about -20 to -35 degrees. Quite often, there is over a 100 degree difference between the two readings.
At these cold temps, you will naturally have contraction of the metals. With contraction, the rust will break up enough in the threads to allow the lubricant to penetrate as it thaws.
The product is flammable and must be used in a well ventilated room, so use around ignition or hot wires is not recommended. The product can also cause frostbite, so caution must taken at all times.
These products work in most applications where a penetrant is used. I generally recommend them on smaller fasteners because of the amount of product needed for it to be effective can be prohibitive as the sizes increase. They are very effective on brake lines and bleeder screws. With bleeders, spraying into the hole produces excellent results.
Feed back from my customers has always been very good. I highly recommend this type of product where normal penetrants aren't effective and the use of heat is not suggested.
Pennsylvania and Ohio, the states where I sell, are two of the strictest states in the country concerning the chemicals they permit to be sold within their borders. Both permit the sale of this product.
